Attachment for cultivators



2 Sheets-Sheet 2. I

v (No Model.) H. O. PRATT.

ATTACHMENT FOR CULTIVATORS.

No. 359,518". Patented Mar. 15, 1887.

N. PEYEIIS. Pholn-kilhugmpllur. wmzn wm an 'NITED STATES rrien.

PATENT ATTACHM ENT FOR CULTIVATO RS.

SPECIFICATION forming part of Letters Patent No. 359,518, dated March15, 1887.

Application filed September 8, 1885. Serial No.176,508. (No model.)

To aZZ whom, it may concern:

Be it known that I, HENRY G. PRATT, of Oanandaigua,in the county ofOntario and State of New York, have invented a new and usefulImprovement in Attachments for Gultivators, which improvement is fullyset forth in the following specification and shown in the accompanyingdrawings.

This invention has relation to improvements in attachments forcultivators; and it consists in the construction, novel arrangement, andadaptation of devices, as will be hereinafter more fully set forth andclaimed.

Referring to the drawings, Figure 1, Sheet 1, is a side elevation of myimproved standard with a portion of the frame ofa cultivator andattachments for the standard, parts being shown in two positions ofadjustment by full and dotted lines; Fig. 2, a view from the op: positedirection of the lower portion of the standard with a tooth and wing orblade for billing; Fig. 3, a plan of a portion of the machine, drawn tofurther show the standard and its relation to the frame and the notchedcircular plate designed to rest against the frame, a portion of thelatter beingshown in dotted lines, and a part of the standard brokenaway to uncover the breaking-pin; Fig. 4,atransverse section of thestandard and gage, taken as upon the dotted line a: in Fig. 1, drawn toa larger scale to further show the clamp or binder for the parts; andFig. 5, Sheet 2, a plan of a portion of the frame of a cultivator withthe parts of the same represented as in two positions of adjustment byfull and dotted lines, showing a standard attached to the frame andshifted to position, in accordance with the positions occupied by saidparts of the frame to be parallel with the line of advance of themachine.

Referring to the parts, A is a part of the frame of a farm-cultivator;B, the standard attached to a holder, 0, secured to the frame by aclamping bolt, a. 1 D is a tooth secured to the lower end of thestandard, and F side wings, also secured to the standard for throwingdirt around the hills or rows of growing vegetables. 7

G is a trailing gage secured to the standard bymeans of a clamp, H,which gage consists of a bar of iron, d, bent near its lower end to ahorizontal position and provided with a detachable shoe, 7;, to bereplaced by another when worn.

The standard B is a flat yielding bar of steel, bent substantially tothe form of a letter S, and pivoted on a pin, 2', between parallelvertical plates h of the holder G. The clamp or binder H consists of ablock or body, a, transversely notched at 0, on opposite sides, to receive the standard and the gage, as shown, a cap-piece, f, and a bolt,6, having its ends bent to pass through transverse holes in the part c,

and cap-piece f and clampingnutsgbeing fitted to the threaded ends ofthe bolt outside of the plate or cap-piece. 1 By tightening the nuts 9the gage and standard are held rigidly together. The bar 01 of the gagemay be slid endwise through the binder, as indicated in Fig. l, to givethe tooth a greater or less depth of cut, and the binder may be moved upor down along the standard to cause the gage to bear upon the groundfarther from or nearer to the tooth which it follows, the gage beingheld rigid in any position of adjustment by the binder being tightenedthereon.

The adjustments of the gage are of advan tage in cultivating indifferent kindsof soil and in wet and dry land; also, in cultivatingamong roots of tender or more rugged growth.

The holder 0 for thestandard is formed with a horizontal part, It,formed upon its upper, face with radial notches or teeth in position toindent the timber of the frame when held thereto by the centerclamping-bolt, a. The vertical plane of the standard needs-to be a lwaysparallel with the line of advance of the implement, and when the timbersof the frame are expanded or contracted at their rear ends, as shown andabove stated, the planes of the standards are necessarily thrown awayfrom said parallelism. The swivel movement of the standards upon-theframe and bolts it enables the operator to adjust them upon the frame asoccasion may require, so the teeth shall truly face in the direction inwhich the cultivator moves. \Vhen a standard, by means of its holder, isfirmly clamped to the frame, the

toothed plate It prevents its turning thereon.

when in use.

At its upper end the standard is formed with a loop or eye, a, and madestraight for some distance, and fitted to rest horizontally within theholder 0, to which it is held by a pivotpin, 1', said standard passingthence over a safety pin or stop, Z, inserted horizontally through theplates 70 at a point distant from 5 the pin i, which is passed throughthe plates h and the loop a, as shown. This safety-pin is made of woodor other comparatively frail material, and it is designed to break andgive way to let the standard swing backward and pass over an obstacleshould the tooth encounter such unyielding obstacle-as, for instance,the root of a tree or a firmly-set stone. By this means the standard issaved from being broken, which might occur were it held rigidly to theholder or frame.

lhe standard is made preferably of fiat barsteel, and yields to the moremoderate strains upon it when in use, and being made in a double orreverse curve there is considerable length given it between the end heldby the pivot-pin and the free end holding the tooth. On this account itis enabled to yield to a greater extent to the pressure upon the pointor tooth,whieh is desirable in making the eultivator of easy draft andcausing it to do better work. Cultivating is done in soft soil, or

soil previously thrown up by the plow, and the design of cultivating isto work over the surface-soil without cutting deeply therein.

I am aware that it is not new to provide a rigid plow-standard with ayielding gage or eoverer; but I am not aware that any one has heretoforeprovided a spring-standard with a rigid trailing gage adjustably uponthe stand- 5 ard, and I attach importance to the employment ofsuch, asit will be seen that when a spring-standard is used it is not necessaryto raise the entire plow frame in order to adjust the point of thestandard.

0 I am also aware that it is notnew to arrange a shoe on a springtoothto travel in advance of its point.

\Vhat I claim as my invention is 1. In combination with the frame of acultivator, a standard-holder formed with a ser- 5 rated head, the teethor ridges of which bear directly against the timber of said frame, saidholder being further formed with upturned parallel sides or platesforming a channel or rest in which the standard rests, a springstandardoccupying said channel and held therein and to the sides of said headbya pivotbolt passed through said sides of the head and the standard,upon which pivot-bolt said standard may turn, and a tooth secured tosaid stand- 5 5 ard, substantially as shown and set forth.

2. A frame of a cultivator, in combination with a spring standard andtooth secured thereto joined to said frame, andatrailing gage forregulating the depth of cut of said tooth secured adjust-ably to saidstandard, said gage being provided with a detachable shoe, substantiallyas shown.

3. The combination, in a cultivator, of a spring-standard for holdingatooth, the bar of a gage secured to said standard, a clamp or binderfor holding said standard and said bar together, consisting of a blockor body notched on opposite sides for receiving said standard and bar, acap-piece, and a clamping-bolt to bind said standard, block, bar, andcap-piece together, substantially as described.

4. The combination, with a spring-cultivator tooth or standard, of arigid trailing gage adjnstably attached thereto, substantially asspecified.

5. The combination, with a spring-cultiva tor tooth or standard ofapproximately 8 form, of a rigid trailing gage adjustabl y attached tothe lower bend or curved portion of the said standard, substantially asspecified.

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